Railway-car.



S. OTIS. A

' RAILWAY'QAR:

' PT. 6, 1907. 91 7 1 14. Patented Apr. 6, 1909. Z SHEETSSHEBT 1.

lilllflllliilillllilllllllllll RAILWAY CAR. APPLICATION FILED SEPT. 6.1907.-

Patenyed pr. 1909.

2.8HEBTS-8HEBT 2.

.fnvenior.

mm vm o o o 0 0 Q 0 0 0 O 0 0 O O u 0 U 0 6 O O I 0 O O 0 0 O O o o o coII 1 000 00 o u IH I] o o o a 000 00 0 HH I o lllNlllEll) %TATE PATTENT?SPENCER OTIS, OF CHICAGO, ILLINOIS, ASSIGNOR TO NATIONAL DUMP CARCOMPANY, OF

CHICAGO, ILLINOIS, A CORPORATION OF MAINE.

RAILWAY-CAB).

Specification ofLetters Patent.

Patented April 6, 1909.

Application filed September 6, 190?. Serial No. 391,624.

To all whom it may concern:

Be it known that I, SPENCER One, a citizen of the United States,residing at Chicago, in the county of Cook and State'of Illinois, haveinvented certain new and useful linroven1ents in Railway-Cars, of whichthe lollowing is a specification.

My invention relates to railway cars and. more particularly to dumpcars.

One of my obj eots is to provide an improved mechanism for operating andcontrolling dump car doors.

Another-object is to rhvide an improved side frame for cars.

' In the accompanying drawingsl igure represents a cross-section of myimproved car and Fig. 2' is an' inside elevation of a side frame, withthe side wall attached thereto.

The car body 12 has dumping doors l3 pivotally attached thereto at 14.Each dumping door 13 has on. its under side a track 13 which rests on aroller 15, and this rollerin turn rests on a fixed track 16. A

chain 19 has one end attached to a fixed point 20 and the other endwrapped about thedrum 18 on the roller 15'. Another chain 19 has one endattached to the door at the point 19 and its remaining end wrapped aboutthe roller or the shaft 15.

At the top of theside wall is a horizontal Z-bar comprising the web 21and the flanges 22 and 2?. This is supported hy the side stakes 24, theweb'2l lJGlIlZI riveted thereto. At the bottom of the side frame thereextends a horizontal channel bar 25 having its web riveted to the sidestakes 24. "The boards of the side wall 26 are bolted to the side stakes24, and to the inclined members 27 which have their ends riveted to thetop and bottom flanged members 21 and 25. These in clined members 27constitute a part of the side frame, and are inside the side walls Metalcleats 28 are on the outside of the side walls opposite to therespective side stakes 24.

If the shaft 15, shown at the right of the drawing, be rotated in acmmtenclockwise direction it will Wind the chain 19 thereon, at the sametime unwinding the chain 19 t will thus move to the right sliding up theinclined track 16, rolling along the opposed track 13 and therebyclosing the door 13. hen closed the chain 19 will be almost completelywrap )ed about the drum 18, while the chain 19 will be nearly unwrappedfrom the shaft 15. When in this state, rotation. in a direction oppositeto that described will. start the shaft 15 down the track 16 and ermitthe door to open. I have not disclosec n1echanno part of my presentinvention and is wellknown to those familiar with the art here involved.

Among the advantages of the specific type closed, l wish to callattention to the freedom falling on the chains 19 and. 19. it, will heoff. wound on the roller 15 in the oppos wree-- tions to those shown,then the dirt would fall in between the chain. and the roller, and wouldthus necessitate the elea 3 chain het'ore further operat' My improvedside frame has t e. i for the weight of material employed 1 manufacture.The 2-loar at the top is suhjected to a' compression stress, and theaggregate width of the flanges effectively on poses the tendency tolateral buckling.

My improved construction constitutes a trussed side capable of carryingpractically all of the load of the car and so constructed as to presentthe maximum res tance to buckling. In the car illustrated, the

care of the hailing and draft strains, reliance being placed principallyupon the side trusses for carrying the load. This being the case, it isof the utmost importance to provide against the sides becoming buckledside thrusts due to accident or other causes. The strength ol the sidetrussl'ieronios seriously impaired soon. as it her tortel iron the pie.'lh. bar at the top oi the Sll.

ism for rotating the shaft 15, for that forms oi door-controllingmechanism herein (he.

from complications due to dirt or debris.

sill sorvhs principally as a means of taking to the door.

; tending -underthe other flange.

ing a to 3. In a car, a side frame comprising side stakes, a side wall,and a flanged member along the top of the side frame, one flange thereofextending over the side wall and another flange extending over the topends of the side stakes.

4. vIn a car, a sideframe comprising side stakes, a Z-bar having its webattached to the sides of the stakes with one flange exover the topsthereof, and a side wall 5. In a car, a trussed side frame compris-Z-bar with its web in a vertical plane, si e stakes with their top endsriveted to the web of the Z-bar, a tie-member connecting the lower partsof the side stakes, and inclined braces extending between the Z-barandthe tie-member.

6. In a car, a trussed side frame comprising a top Z barwith its web ina vertical plane, side stakes having their upper parts attached to theZ-bar, a tie-member connecting the lower parts of the side stakes, andinclined braces within the side frame.

7. In a car, a trussed side frame comprising a top Z-bar with its webina vertical plane, side stakes having their up er parts attached to theZ-bar, a channei bar attached to the lower parts of the side stakes, andinclined braces within the side frame.

8. In a car, a side frame, com rising a 2- bar having its web in avertical p iane and its flanges horizontal, a lower channel member,

side stakes and diagonal braces secured tothe webs of said Z-bar andchannel, side planks secured to the outer side of said stakes andbraces, said planks lying between the lower flange of said Z-bar and theupper flange of said channel.

SPENCER OTIS.

